Brush core for a sponge brush



FIG. 1 is a front perspective view of a brush core for a sponge brush showing our new design.

FIG. 2 is a reduced front elevational view of the brush core of FIG. 1.

FIG. 3 is a reduced rear elevational view thereof.

FIG. 4 is a reduced right side elevational view thereof.

FIG. 5 is a reduced left side elevational view thereof.

FIG. 6 is a reduced top plan view thereof; and,

FIG. 7 is a reduced bottom plan view thereof.

The broken lines in FIGS. 1-7 are included for the purpose of illustrating environmental structure only and form no part of the claimed design. 

CLAIM The ornamental design for a brush core for a sponge brush, as shown and described. 